gz/rendering/ogre/OgreHeightmap.hh

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/*
 * Copyright (C) 2020 Open Source Robotics Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
*/
 
#ifndef IGNITION_RENDERING_OGRE_OGREHEIGHTMAP_HH_
#define IGNITION_RENDERING_OGRE_OGREHEIGHTMAP_HH_
 
#include <memory>
#include <string>
#include <vector>
 
#include "ignition/rendering/base/BaseHeightmap.hh"
#include "ignition/rendering/ogre/OgreGeometry.hh"
#include "ignition/rendering/ogre/OgreIncludes.hh"
 
// Ignoring warning: "non dll-interface class
// 'ignition::rendering::v5::Heightmap' used as base for dll-interface class"
// because `Heightmap` and `BaseHeightmap` are header-only
#ifdef _MSC_VER
 #pragma warning(push)
 #pragma warning(disable:4275)
#endif
 
namespace ignition
{
  namespace rendering
  {
    inline namespace IGNITION_RENDERING_VERSION_NAMESPACE {
    //
    // Forward declaration
    class OgreHeightmapPrivate;
 
    class IGNITION_RENDERING_OGRE_VISIBLE OgreHeightmap
      : public BaseHeightmap<OgreGeometry>
    {
      protected: explicit OgreHeightmap(const HeightmapDescriptor &_desc);
 
      public: virtual ~OgreHeightmap();
 
      // Documentation inherited.
      public: virtual void Init() override;
 
      // Documentation inherited.
      public: virtual void PreRender() override;
 
      public: virtual Ogre::MovableObject *OgreObject() const override;
 
      public: virtual MaterialPtr Material() const override;
 
      public: virtual void SetMaterial(MaterialPtr _material, bool _unique)
          override;
 
      private: void ConfigureTerrainDefaults();
 
      private: bool PrepareTerrain(const std::string &_terrainDirPath);
 
      private: void UpdateTerrainHash(const std::string &_hash,
          const std::string &_terrainDir);
 
      private: void SplitHeights(const std::vector<float> &_heightmap,
                  int _n, std::vector<std::vector<float>> &_v);
 
      private: void DefineTerrain(int _x, int _y);
 
      private: void CreateMaterial();
 
      private: bool InitBlendMaps(Ogre::Terrain *_terrain);
 
      private: void SetupShadows(bool _enabled);
 
      private: friend class OgreScene;
 
      private: std::unique_ptr<OgreHeightmapPrivate> dataPtr;
    };
    }
  }
}
#ifdef _MSC_VER
 #pragma warning(pop)
#endif
 
#endif